Model-based fault diagnosis: knowledge acquisition and system design

Authors:
Thomas H. Schmidt
Affiliations:
EDV Studio Pioenzke, Fürther Str. 2a, D-8500 Nürnberg
Venue:
IEA/AIE '89 Proceedings of the 2nd international conference on Industrial and engineering applications of artificial intelligence and expert systems - Volume 1
Year:
1989

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Abstract

Within this paper a model-based approach for knowledge-based diagnosis-systems is discussed. The model is derived from the fault recognition and fault searching techniques used by maintenance experts in general. The presented model has implications on the knowledge acquisition method in a way that only such data that are usually known to the maintenance expert have to be gathered and interlinked. This means that knowledge acquisition has only to deal with a knowledge source that can be prestructured. The model for knowledge-based diagnosis-systems and the knowledge acquisition method has been successfully used to develop diagnosis systems for a SMD-insertion machine and an extrusion machine. Time needed for knowledge acquistion has been reduced.